CLSA-2023-1701285323 exim: Fix of CVE-2023-42117

CVE-2023-42117: fix stringisipaddress...

CLSA-2023-1700160152 Fix CVE(s): CVE-2023-42117

SECURITY UPDATE: Remote code execution because of improper neutralization of special elements - debian/patches/CVE-2023-42117.patch: fix stringisipaddress - CVE-2023-42117...